Machine for rounding and straightening bars



(No Model.)

P. A. WAGNER & N. BEAUREGARD. MACHINE FOR ROUNDING AND=STRAIGHTENING BARS. No. 510,454.

, Patented Dec. 12

UTHOGRAFHWG TNE NATIONAL WASHINGTON, n. c.

UNrrED STATES PATENT OFFICE.

PETER A. WAGNER AND NAPOLEON BEAUREGARD, OF SAN FRANCISCO,

CALIFORNIA.

MACHINE FOR ROUNDING AND STRAIGHTENING BARS.

SPECIFICATION forming part of Letters Iatent No. 510,454, dated December 12, 1893. Application filed May 1, 1893. Serial No. 472,590- .No model.)

To all whom it may concern.-

Be it known that we, PETER A. WAGNER and NAPOLEON BEAUREGARD, citizens of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Machines for Rounding and Straightening Bars; and we do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

This invention has relation to a certain new anduseful machine for roundingand straightening steel, iron, or other metallic bars or tubes of metal, which consists in the arrangement of parts and details of construction, as will be hereinafter more fully set forth in the drawings, described and pointed out in the specification.

Referring to the drawings forming a part of this application, similar letters of reference are used to denote corresponding parts throughout the entire specification and several views.

Figure 1, is a top plan view of the machine. Fig. 2, is a side elevation of the machine, taken on line w, viewed in direction of the arrow, showing the rolling disk partly broken away; Fig. 3, a broken end elevation of Fig. 1. Fig. 4, is a broken longitudinal sectional view on line y-y, Fig. 1; and Fig. 5, is an end elevation of the hinged receivingtrough for the bar.

The letter A, is used to indicate the frame of the machine, and A, the top thereof, the top being cast with openings at, a, a as shown, within which openings work the rolling disks and gear mechanism hereinafter described. Within suitable bearings, as shown, in the top and frame of the machine, work the shafts B, B, the inner ends of which shafts terminate in or have secured thereto, rolling disks or plates 0, C. The shafts and disks may be cast integral or made separate, as desired. Upon the shafts B, B, we locate the gear wheels, D, D, the rotation of which gears serves to operate the rolling disks. The outer ends of said shafts project within boxes E, E, as shown, and are surrounded by spiral springs F, F, which spirings maintain an inward pressure upon the shafts. The tension or pressure of these springs we regulate by means of the set screws or adjusting nuts b, b. A portion of each of the shafts B, B, we form with screw-threads, as shown at c, c, and upon this portion thereof are secured screw-threaded collars H, H, and jam-nuts H H. In order that an inward adjustment may be given to the shafts, it is necessary that the collars and jam-nuts be first moved outward. When the rolling disks have been properly adjusted to the diameter of the bar to be rolled, the collars H, H, are screwed so as to impinge against bearings d, and jamnuts screwed tightly against the collars in order to prevent the displacement thereof. These collars and jam-nuts have lever openings or sockets cast therein so as to permit of the ready turning thereof by the insertion v of a lever therein.

The rolling faces of the disks C, C, are beveled, but the operating shafts B, B, are located at such an angle as to cause the rolling'surfaces or faces of the opposing disks to lie parallel for a distance equal to one-half their diameter, as shown at ll.

At each side of the machine frame are attached guide pieces f, f, in front of the rotating disks, which guides serve to maintain the bar in proper position while traveling between the disks. We also secure to the frame, in front of the guides, supporting troughs I, I, the trough I being used for the purpose of receiving and supporting the bars as they come from the rolls, and holding same while being fed between the rolling disks, while the trough 1, receives the bar as moved from between the said disks. This trough is hinged to standard or support h. Consequently when the bar has passed from between the disks, the trough may be tilted to one side which permits the bar to roll from within the trough. Inasmuch as the bar when being rolled is in a-heated condition, it is necessary to provide for the tilting of the trough I in order to permit the removal of the rolledbar.

At the front portion of the frame is located the shaft K, which is mounted within suitable bearings e, c. To the outer projecting ends of this shaft are secured the belt wheels K, K which wheels are operated in theusual manner. To the outer end portion of said shaft is secured the cog-wheel L, the teeth of which intermesh with the teeth of wheel D, and impart the motion of shaft K, to said wheel,which likewise rotates shaft B, and disk C. Upon the opposite end portion of shaft K, is fastened the pinionL', the teeth of which intermesh with the teeth of the idler L which likewise intermesh with the teeth of gear wheel D. Consequently the motion of shaft K, is imparted to shaft B, and disk 0, through the medium of the idler L which idler is fastened upon shaft L as shown. By transmitting the motion of shaft Kthrough the medium of idler L an opposite rotation is imparted to shaft B,,and disk 0, than is given shaft B, and disk 0. Thus the two disks are caused to rotate in an opposite direction to eachother, but at a uniform rate of speed.

In order that the disks 0 and C, may act to roll and automatically feed the bar, we so secure the shafts B and B, that the centers of said disks will be one below the other, as shown in Figs. 1, 3 and 4. Consequently the bar of iron or steel,.O, when placed within thedisks will lie between the centers thereof, and inasmuchas the disks rotate in an opposite direction, it is obvious that one will act as a feed disk while the other will serve to. roll the bar as fed forward between the two centers.

As before stated, the disks, owing to the inclined position of the shafts B, B', only have a rolling surface for one-half of their diameters. Consequently the bar to be rolled, when inserted within the machine, is not grasped by the disks until the same has movedforward one-halfthe diameter thereof. The faces of the disks having been adjusted to the diameter of the bar, it is obvious that when the centers of the disks have been reached, the bar will be caught between the rolling surface and 1 being between the centers of the two disks, the same will be rolled and fed forward by theopposite rotation of the disks.

As the bar is rolled and fed forward, a slight slipping occurs and this serves to polish or finish the bar. Thus the machine not only straightens and rounds the bar, but at the same time puts a finish thereon. As the bar moves between the oppositely revolving disks,

which are spring actuated, the same will give slightly to any lumps or swells in the bar, and the tension of the end springs F, F, thus acts to impart a pounding to the said disks, which pounding of the disks serves to take out any unevenness of the bar.

Owing to the scale which falls from the iron, the faces of the rolling disks or plates become quickly worn and useless, and in order to provide against the loss which would result in case the entire disk had to be thrown away, we provide the disks with a removable shoe or cap M (see Fig. 4), which is secured thereto by means of bolts 70, or otherwise. Thus when the rolling face becomes worn it is only necessary to remove the shoe or cap and insert another in place thereof.

While we havedescribed our invention as adapted for rounding-and straighteningthe bar, itis obvious that thesame maybe used equally as well for rounding and straightening pipes or tubes,such as gas pipes, &c.

Having thusdescribed our invention, what we claim as new, and desire to secure protection in by Letters Patent, is-

1. The combination with the frame provided with journal boxes E E, of the shafts mounted on the frame and havingtheir outer ends resting in said journal boxes, rolling disks secured to the inner ends of the shafts, mechanism for rotating said shafts, and springs arranged within said boxes audbearing against the endsof the shafts.

2. The combination with the frame provided with journal boxes E E, of the shafts mounted on the frame and havingtheirouter ends resting in said journal boxes, rolling disks secured to the inner ends of the shafts, mechanism for rotating said shafts, springs arranged within the boxesE E and-bearing on the outer ends of the shafts, and adj ustable stops on said shafts adapted to impinge against the frame and limit the inward thrust of the shaft.

In testimony whereof we affix our signatures in presence of two witnesses.

PETER A. WA R. NAPOLEON B'EAUREGARD.

Witnesses:

DANIEL HANLON, N. A. AOKER. 

